Finding the Fourth Proportional to 268,102.09, 402,152.90 and 68,422.46
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Solution
The fourth proportional to 268,102.09, 402,152.90 and 68,422.46 is: 102,633.63
Step by Step Solution
- Step 1: Write the proportion equation
268,102.09 : 402,152.90 = 68,422.46 : x - Step 2: Convert to fraction form
268,102.09/402,152.90 = 68,422.46/x - Step 3: Cross multiply
268,102.09x = 402,152.90 × 68,422.46 - Step 4: Simplify right side
268,102.09x = 27,516,290,714.13 - Step 5: Solve for x
x = 27,516,290,714.13/268,102.09 - Step 6: Final answer
x = 102,633.63
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.